https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://vital.seals.ac.za/vital/access/manager/Repository/vital:28341 Wed 12 May 2021 23:44:30 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36687 Wed 12 May 2021 23:39:03 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:11877 Wed 12 May 2021 22:37:58 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:26967 Wed 12 May 2021 22:26:56 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5344 Wed 12 May 2021 20:49:48 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:11984 Wed 12 May 2021 20:28:56 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:20352 Wed 12 May 2021 20:00:59 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:717 Wed 12 May 2021 18:53:23 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:1561 Wed 12 May 2021 17:58:20 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:994 Wed 12 May 2021 17:15:28 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:1285 Wed 12 May 2021 16:52:26 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:920 Wed 12 May 2021 16:28:57 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40866 Wed 12 May 2021 15:02:03 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40867 Wed 12 May 2021 14:51:07 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39609 Thu 13 May 2021 15:47:56 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:1699 Thu 13 May 2021 08:09:36 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:20478 Thu 13 May 2021 07:38:04 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:9153 Thu 13 May 2021 07:29:51 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:10526 Thu 13 May 2021 07:10:55 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29460 .05), this indicates that there is a positive or a negative relationship between two variables, if these conditions are not met then the proposed correlation or hypothesis can be rejected. Results indicate a poor perception and poor acceptance of e-learning technologies due to a number of factors, these factors include lack of computer-self efficacy which leads to computer anxiety, affordability of internet connectivity which leads to inaccessible of e-learning technologies. The findings also indicated that LAMS was found to be less useable and less useful by a number of students. However, students who enjoy working in groups found LAMS to be useable because it was supporting their preferred learning style, whereas individualistic students preferred Moodle and Dokeos because it was supporting their personal preferences and assessment styles. Having understood all the characteristics of learning tools, relevant learning technologies that are suitable for students can then be recommended.]]> Thu 13 May 2021 06:42:22 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:28091 Thu 13 May 2021 06:29:52 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:1558 Thu 13 May 2021 06:29:18 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3126 Thu 13 May 2021 06:10:41 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39875 Thu 13 May 2021 06:04:53 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:28520 Thu 13 May 2021 05:42:42 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5768 500 μm) was investigated in the warm temperate, permanently open Kariega Estuary situated along the south-eastern coastline of South Africa. Spatial and seasonal patterns in the hyperbenthic community structure were assessed monthly at six stations along the length of the estuary over a period of twelve months. Data were collected using a modified hyperbenthic sledge, comprising two super-imposed nets. Physico-chemical data indicate the presence of a constant reverse salinity gradient, with highest salinities measured in the upper reaches and lowest at the mouth of the estuary. Strong seasonal patterns in temperature, dissolved oxygen and total chlorophyll-a (chl-a) concentrations were evident. Total average hyperbenthic densities ranged between 0.04 and 166 ind.m-3 in the lower net and between 0.12 and 225 ind.m-3 in the upper net. Hyperbenthic biomass values ranged between 0.02 and 11.9 mg.dry weight.m-3 in the lower net and between 0.02 and 17.4 mg.dry weight.m-3 in the upper net. A spatial and temporal pattern in total densities was detected with an increase in abundance over the period of September to October 2008 particularly in the middle reaches (Stations 3 and 4). Both the lower and upper nets were numerically dominated by decapods (mainly brachyuran crab zoeae) with the exception of June and July 2008 when mysids (mainly Mesopodopsis wooldridgei) dominated, making up 72.4 ± 58.14% of the total abundance in the lower net. A redundancy analysis (RDA) indicated that 99.2% of the variance in the hyperbenthic community structure could be explained by the first two canonical axes. Axis one, which accounted for 96.8% of the total variation detected in the ordination plot was highly correlated with sedimentary organic content and to a lesser extent the chl-a concentration within the Kariega Estuary. The correlations with the second canonical axis (2.4%) were less obvious, however, salinity and seston concentration were weakly correlated with this axis. Diel variability in the hyperbenthic community structure was assessed during March 2009. Samples were collected during the day and night (n = 6 for each period) using sampling gear described above. Total average hyperbenthic densities during the day (497.9 ± 254.1 ind.m-3) were significantly higher than night-time estimates (129.9 ± 38.5 ind.m-3; p<0.05). There were no significant differences in the average dayand night-time estimates of hyperbenthic biomass (p>0.05). A hierarchical cluster analysis identified two significantly distinct groupings, designated the day and night samples. Results from the SIMPER procedure indicated that the high densities of crab zoeae recorded during the day-time accounted for the majority of the dissimilarity between the day and night groupings (44.7%). In addition, it is apparent that several benthic species, especially from the cumacean and isopod orders, were absent from the hyperbenthos during the day-time and emerged into the water column at night.]]> Thu 13 May 2021 05:37:41 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:826 Thu 13 May 2021 05:32:19 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:28497 Thu 13 May 2021 04:16:49 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:805 Thu 13 May 2021 03:39:35 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3530 Thu 13 May 2021 03:38:25 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:9792 Thu 13 May 2021 03:24:47 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:11922 Thu 13 May 2021 01:26:16 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4264 Thu 13 May 2021 00:43:44 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:1955 Thu 13 May 2021 00:07:54 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:9425 Thu 13 May 2021 00:01:59 SAST ]]>